Converting dual SCC input files to embedded captions - MediaConvert

Converting dual SCC input files to embedded captions

If you want to use two SCC files as your captions input and embed the captions as two output captions channels embedded in your output video stream, set up your captions according to this procedure.

To convert dual SCC to embedded captions

  1. Set up two input captions selectors. Follow the procedure in Creating input captions selectors. Specify values as follows:

    • In each captions selector, choose SCC for Source.

    • For Source file, choose one of your input SCC files in each selector.

    • If you want both 608 and 708 captions embedded in your outputs, choose Upconvert for Force 608 to 708 upconvert in both captions selectors.

  2. Set up captions in your outputs. Follow the procedure in Setting up captions in outputs. Follow these specific choices:

    • Specify the captions in the same output as the video that you want the captions embedded in.

    • Choose Add captions twice, to create Captions 1 and Captions 2 tabs in the Encoding settings section.

    • For Captions source, in each of the captions tabs, choose one of the captions selectors that you created in the preceding step of this procedure.

    • For CC channel number, choose a number for each of the captions tabs that don't share a field. For example, in Captions 1, choose 1 for CC channel number and in Captions 2, choose 3 for CC channel number.

      Don't choose the combinations 1 and 2 or 3 and 4, because those pairs of channels share the same field.

    • If you chose Upconvert in the preceding step of this procedure, optionally specify a service number for 708 service number. Within an output, each captions tab must specify a different service number.

      If you upconvert and don't specify a value for 708 service number, the service uses the value that you specify for CC channel number as your 708 service number.